SpaceX pushes Falcon Heavy launch to Monday night

SpaceX held off a Sunday night attempt to send up its fifth Falcon Heavy launch of the year, delayed it for a day and now aims for Monday night.

Flying for only the ninth time ever, the Falcon Heavy is slated to lift off from Kennedy Space Center’s Launch Pad 39-A during a 10-minute window that opens at 8:14 p.m.

A backup during the same window is available Tuesday night.

Weather concerns were an issue for Sunday night and SpaceX said it would take the extra time to complete additional prelaunch checkouts.